Abstract: A device is provided having a sensor for detecting uterine activity of a pregnant user. The device may be positioned abutting the user's abdomen, and includes a housing defining an inner cavity with a circuit board positioned therein. The circuit board includes at least one slot defining a cantilever portion thereof having an attached end and a free end, and the sensor may be positioned proximate the attached end. An actuator may be coupled to the free end of the cantilever portion such that movement of the actuator (e.g., as a result of a contraction) causes the cantilever portion to flex, and the sensor to detect a resulting strain on the cantilever portion.